How to Find the Best Lectin-Free Protein Powder
📌 Overview and Key Takeaways
This is a Certified Nutrition Coach’s guide on how to find the best lectin-free protein powder.
Discover how to meet your protein needs without lectin.
Lectin-Free Protein Powder
Are Lectins Bad For You?
Lectins are proteins that bind to carbohydrates.
They are found in all plants, but raw legumes like peas and whole grains like wheat contain the highest amounts.
Lectins have received a lot of bad press in recent years.
Popular media outlets cite them as a leading cause of obesity, chronic inflammation, and autoimmune disease.
Although there may be some truth to such claims, there is very limited research into the long-term effects of lectin consumption in humans.
What we do know about lectins mostly has to do with digestion.
In nature, lectins protect plants against external pathogens such as fungi.
The same characteristics that lectins use to defend plants also make them hard to digest; they are stable in acidic environments like your stomach and resist being broken down.
It follows that when consumed, lectins in their active state can disrupt digestion (Toxicon, 2004).
For instance, eating just a small amount of raw kidney beans can cause bloating, diarrhea, and stomach pain.
This is why most legumes are soaked and cooked before eating.
Soaking and cooking inactivates lectins, which are water-soluble and typically found on the outside of the plant.
It is important to note that there are different types of lectins, and different people react to lectins differently.
People with digestive diseases like irritable bowel syndrome (IBS), for example, are more likely to experience symptoms after eating lectins.
If you have a sensitive stomach, you may therefore want to consider reducing your consumption of lectin-rich foods.
That said, in many large population studies, foods high in lectins like legumes, whole grains, and nuts are associated with weight loss and a decreased risk of chronic diseases (BMJ, 2016).
Keeping some high lectin foods in your diet is thus a good idea.
My advice is to just eat them in moderation.
Product Quiz
Does Protein Powder Contain Lectins?
Most protein powders do not contain many lectins.
That said, to play it safe, I recommend avoiding pea and soy proteins, as peas and soybeans are lectin-rich legumes.
Some people will tell you that you also have to be careful with animal proteins like whey and eggs as many cows and chickens are fed grains and legumes.
This is not true.
There may be trace amounts of lectins in animal products, but they are so small that they will not affect your digestion.
To be honest, lectins are not really something that you have to worry about when buying protein powder, even plant-based protein powder.
Instead, you should focus on avoiding the many other protein powder ingredients known to cause digestive issues.
What Is the Best Lectin-Free Protein Powder?
Because all plants contain lectins, a lectin-free protein powder must be 100% animal-based.
This means no plant-based flavors, sweeteners, or additives of any kind.
The only protein powders that meet these criteria are single ingredient, animal-based powders like Unflavored Egg White Protein Powder and Unflavored Collagen Protein Powder.
Having a few lectins in your diet is not a bad thing, however.
It is usually a sign that you are eating a healthy, balanced diet.
Plus, lectins are by no means the worst thing in protein powder.
Many, if not most, protein powders contain ingredients that can cause painful side effects and long-term digestive problems.
Among these ingredients are food additives, dairy-based proteins, and protein concentrates and isolates.
🚫 Avoid Food Additives
Regularly eating certain additives can also alter the composition and function of your gut microbiome – the collection of microorganisms living in your digestive tract (North Clin Istanb, 2020).
These shifts, known as gut dysbiosis, have been linked to a number of chronic digestive issues (JGH Open, 2021).
Gut dysbiosis is so problematic because it causes a cascade of problems, including intestinal permeability, systemic inflammation, and impaired nutrient absorption.
⚠️ Here is a list of the most common food additives in protein shakes and powders:
- acacia fiber
- acacia gum
- acesulfame potassium
- artificial flavors
- ascorbic acid
- aspartame
- calcium carbonate
- carrageenan
- cellulose gum
- dextrin
- dicalcium phosphate
- dipotassium phosphate
- erythritol
- gellan gum
- guar gum
- gum arabic
- inulin
- locust bean gum
- maltitol
- maltodextrin
- mono- and diglycerides
- ‘natural’ flavors
- rice bran extract
- rice dextrin
- rice hulls
- rosemary extract
- silica
- silicon dioxide
- sodium alginate
- soluble corn fiber
- sorbitol
- soy lecithin
- sucralose
- sunflower lecithin
- tocopherols
- tricalcium phosphate
- xanthan gum
- xylitol
- zinc oxide
As a rule of thumb, if you cannot find it in nature or make it at home, it is probably a food additive.
🚫 Avoid Dairy-Based Proteins
Dairy-based proteins like whey and casein, although not a problem for everyone, can cause digestive issues too.
This is usually because they contain lactose – a sugar many individuals with sensitive stomachs cannot fully digest.
But you might be sensitive to dairy-based proteins even if you are not lactose intolerant.
For starters, the digestion of some caseins releases a bioactive peptide that has been linked to digestive issues (Adv Nutr, 2017).
Casein also forms a gel-like substance in your stomach that slows down digestion (Crit Rev Food Sci Nutr, 2023).
For sensitive individuals, particularly true for those with cow’s milk protein allergy or intolerance, slower digestion can contribute to bloating, constipation, and other side effects.
🚫 Avoid Protein Concentrates and Isolates
If you have a sensitive stomach, you might also want to avoid protein concentrates and isolates.
Most protein shakes and powders are made from one or both of these ultra-processed protein sources, which have been mechanically and/or chemically stripped of everything but the protein.
This includes the enzymes, fiber, and other natural digestive aids that help you break them down.
You therefore do not digest them in the same way that you do whole foods, which could affect your gut health.
For example, one study shows that regularly consuming protein concentrates and isolates might disrupt your gut microbiome (Nutrients, 2018).
Another study shows that it could cause the formation of toxic byproducts in your gut (Mol Nutr Food Res, 2024).
Although further research is needed, individuals with sensitive stomachs can play it safe by choosing protein shakes and powders made from minimally-processed protein sources like egg whites and almonds.
They are more gut-friendly.
Order Samples to see for yourself.
Sources
- Toxicon (Toxicon). Antinutritional properties of plant lectins. 2004.
- The BMJ (BMJ). Whole grain consumption and risk of cardiovascular disease, cancer, and all cause and cause specific mortality: systematic review and dose-response meta-analysis of prospective studies. 2016.
- Northern Clinics of Istanbul (North Clin Istanb). Food additives and microbiota. 2020.
- JGH Open (JGH Open). Gut microbiota dysbiosis in functional gastrointestinal disorders: Underpinning the symptoms and pathophysiology. 2021.
- Advances in Nutrition | Journal (Adv Nutr). Systematic Review of the Gastrointestinal Effects of A1 Compared with A2 β-Casein. 2017.
- Critical Reviews in Food Science and Nutrition (Crit Rev Food Sci Nutr). Milk proteins: Processing, gastric coagulation, amino acid availability and muscle protein synthesis. 2023.
- Nutrients (Nutrients). Effect of a Protein Supplement on the Gut Microbiota of Endurance Athletes: A Randomized, Controlled, Double-Blind Pilot Study. 2018.
- Molecular Nutrition & Food Research (Mol Nutr Food Res). In Vitro Fermentation of Animal and Plant Protein Isolates by the Human Gut Microbiota Under High and Low Carbohydrate Conditions. 2024.
Editorial Guidelines
This article was written by a Certified Nutrition Coach and reviewed by a Registered Dietitian. We rely on peer-reviewed research and trusted medical sources, and regularly update our content to ensure accuracy and clarity.
Frequently asked questions
Who Is Drink Wholesome for?
Drink Wholesome makes protein powder for sensitive stomachs, GERD, IBS, and other gut issues. It’s suitable for most food sensitivities, including lactose intolerance, and won’t cause side effects like bloating, constipation, and reflux.
Why Is Drink Wholesome Good for Sensitive Stomachs?
Drink Wholesome is the best protein powder for sensitive stomachs because it’s additive, dairy, and gluten-free. It’s also made from minimally-processed protein sources like egg whites and almonds. Other protein powders are made from ultra-processed protein concentrates and isolates, which look nothing like real food.
What’s the Difference Between Protein Powder and Meal Replacement Powder?
Drink Wholesome makes gut-friendly Protein Powders and Meal Replacement Powders. Protein powder is high in protein and low in everything else, whereas meal replacement powder contains fats, carbs, fiber, and protein because it’s intended to replace the nutritional value of a balanced meal.
What’s the Difference Between Almond, Collagen, and Egg White Protein?
We make three types of stomach-friendly Protein Powder: Collagen Protein Powder, Egg White Protein Powder, and Vegan Almond Protein Powder. As long as you get protein from a variety of sources, any type of protein can help you meet your total daily protein needs. In other words, for someone with a balanced diet, there is no advantage to consuming one type of protein over another. Order Samples to see which type you like the most.
Ask Nutrition Coach
If you’re wondering which Drink Wholesome product is best for you, ask our Certified Nutrition Coach. For personalized medical advice, consult your healthcare provider.
High Protein Balls
PREP TIME
5 min
COOK TIME
5 min
SERVES
2
Ingredients
- ⅓ cup Protein Powder
- ½ cup nut butter
- ¼ cup maple syrup
- 1 tsp vanilla extract
- ½ cup rolled oats
- ¼ cup mini chocolate chips
- ¼ cup shredded coconut
Instructions
Combine the Protein Powder, nut butter, syrup, extract, and oats in a food processor or blender. Pulse until well combined. Add the chocolate and coconut, and pulse a few more times. Roll the dough into 10 balls. Enjoy!
Author(s)
Protein Powder Samples
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